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6405215 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

6405215: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY SEAT, special_features: UPPER SEAT, seat_angle_in_deg: 45.000 NOMINAL, seating_surface_shape: ANGULAR, end_item_identification: SEAWOLF CLASS SSN, material_document_and_classification: QQ-N-281, CLA FED SPEC SINGLE MATERIAL RESPONSE SEAT. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-420-2522, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
6405215
NSN: 4820-01-420-2522
NIINs: 014202522, 014202525
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY SEAT
special_featuresUPPER SEAT
seat_angle_in_deg45.000 NOMINAL
seating_surface_shapeANGULAR
end_item_identificationSEAWOLF CLASS SSN
material_document_and_classificationQQ-N-281, CLA FED SPEC SINGLE MATERIAL RESPONSE SEAT
NSN4820-01-420-2522
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 6405215 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281, CLA FED SPEC SINGLE MATERIAL RESPONSE SEAT
•
MATERIAL: NICKEL ALLOY SEAT
•
SEAT ANGLE IN DEG: 45.000 NOMINAL
•
SEATING SURFACE SHAPE: ANGULAR
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281, CLA FED SPEC SINGLE MATERIAL RESPONSE SEAT
SPECIAL FEATURESUPPER SEAT
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
MATERIALNICKEL ALLOY SEAT
SEAT ANGLE IN DEG45.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
SUBSTITUTES & CROSS-REFERENCES 2
DF6002-400 FN-13Reference document
Same NSN cross-reference
Reference document — Secondary reference
593-6405215 FIND 13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 6405215?
6405215 is a SEAT,VALVE.
What parts can replace 6405215?
There are 2 known substitutes for 6405215: DF6002-400 FN-13, 593-6405215 FIND 13. Substitute compatibility should be verified for your specific system.
What is the NSN for 6405215?
6405215 is cataloged in the U.S. Government catalog under NSN 4820-01-420-2522. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.